Rolling-mill.



J. FAWELL.

- ROLLING MILL.

APPLICATION FILED JUNE 27, 1908.

974,559. Patented Nov. 1, 1910.

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lllllllllllllllllllflllllllhlIHITJIIIIIIIIHIIIIIIIIIIIIIIIIIIIMIHHIIIIIIIIIIIIIIIIIHMW I WITNESSES:

J. FAWELL.

ROLLING MILL.

APPLICATION FILED JUNE 21, 1908.

' Patented Nov. 1, 1910;

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6 yvsgian 1 m J. FAWELL.

ROLLING MILL.

APPLICATION FILED JUNE 27, 1908. 974,559, Patented Nov. 1, 1910.

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HIIIHIIWMHI unmw FIE-5 INVENTOR WITNESSES:

I J. FAWELL.

' ila ROLLING MILL.

Hii I i ll 1 APPLICATION FILED JUNE 2 7, 1908.

Patented Nov.1, 1910.

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WITNESSES:

NNNNNN OH JOSEPH FAWELL, OF PITTSBURG, PENNSYLVANIA.

ROLLING-MILL.

Specification of Letters Patent.

Patented Nov. 1, 1910.

Application filed June 27, 1908. Serial No. 440,646.

To all whom it may concern:

Be it known that I, JOSEPH FAWELL, residing at Pittsburg, in the countyof Allegheny and State of Pennsylvania, a citizen of the United States,have invented or discovered certain new and useful Improvements inRolling-Mills, of which improvement the following is a specification.

The invention described herein has for its object a mill consisting oftwo stands of horizontal rolls arranged in tandem or in a common line offeed, means for normally rotating one pair of rolls in a reversedirection from that of the other pair of rolls means for relativelyseparating the rolls 0 each stand and reversible feed mechanism wherebyan article may be received from one and delivered in a reverse directionto the other stand of rolls.

The invention further consists in combining with such a mill positivelydriven vertical rolls arranged in operative relation to the horizontalrolls.

In the accompanying drawings forming a part of this specification Figurel is a top plan view of a mill embodying my improvements; Fig. 2 is aplan view partly in section of a modification of the mill shown in Fig.1; Fig. 3- is a sectional elevation of my improved mill; Figs. 4 and 5are views respectively similar to Figs. 1 and 3 illustrating anothermodification of m improvement; Fi 6 shows in elevation t e arrangementof 51c horizontal rolls and the manner of driving the same in the millsshown in Figs. 4 and 5; Fig. 7 is a diagrammatic view illustrating theoperation of the mill shown in Figs. 4 and 5; Fig. 8 is a sectional planview lllustrating a modification of the mill shown in Fig. 4; Figs. 9and 10 show a plan and an end elevation of a further modification of myimproved mill.

In the practice of my invention, as shown in Figs. 1 and 3 the millcomprises two stands of horizontal rolls 1 and 1 and 2 and 2*, andvertical rolls 3 and 3, preferably arranged intermediate of the twostands of horizontal rolls. Suitable means as the screws 4 and 5 orother suitable known mechanisms, are provided for adjusting the upperrections, so that the rolls of the two stands will revolve normally inopposite directions.

The vertical rolls have their journal boxes 10 and 11 mounted insuitable horizontal guide bars 12 and 13, and these rolls are adjustedtoward and from each other by any suitable means such for example asthat shown and described in Letters Patent No. 382,035, dated May 1st,1888. The vertical rolls are positively driven either constantly in thesame direction or alternately in opposite directions. The rotation ofthe vertical rolls can be effected from the same motor employed fordriving the horizontal rolls, as shown and described in an applicationby me dated June 27th, 1908, but preferably b an independent motor 14,connected to the rivin shaft 15. It is referred that the vertica rollsshould be riven from the top and hence the shaft 15 is arranged abovethe vertical rolls, and its pinions 16 intermesh with pinions 17 on theupper journals of the vertical rolls. Provision is made for the movementof the pinions 16 along the shaft 15, the construction shown anddescribed in Letters Patent No. 382,035 being suitable for that purpose.

Feed tables A and B are arranged respectively on opposite sides of themill and the feed rollers 18 of these tables are connected b' suitablegearing to suitable reversible riving' mechanism 19, in order that thearticle may be fed back and forth through the mill. As in rolling somearticles reduction by the vertical rolls is not desired, feed rollers 20and 21 are arranged intermediate of the horizontal rolls. Preferably therollers 20 are arranged between one pair of horizontal rolls and thevertical rolls, while the rollers 21 are arranged between the latter andthe other stand of horizontal rolls. These rollers 20 and 21 arepreferably positively driven synchronously with the rollers of the feedtables and in the same direction. Its flexibility of operation is adistinguishing characteristic of my improved mill. As for example,supposing that the article is deposited on the table A, in the firstpass reduction can be effected by means of the rolls 1 and 1 and thevertical rolls 3 if desired, the rolls 2 2 being adjusted apart so asnot to effect any reduction in this pass. In the back pass the rolls 2 2are adjusted so as to effect reduction, the rolls 1 1 are moved apart soas not to operate on the article, while the vertical rolls may beadjusted to efiect reduction or not as desired. It will be understood ofcourse that during the forward pass from the table A to the table B,the'feed rollers of the two tables and also those intermediate of thehorizontal rolls will be driven in one direction, 2'. e. in thedirection of rotation of the rolls 1 1. During the back pass 2'. e. fromtable B to table A, these rollers are reversed and caused to rotate inthedirection of rotion of the roll 2, 2

As hereinbefore stated the vertical rolls, if itbe desired to employthem in both the forward and back passes, are reversed by reversingtheir motor which, as heretofore stated, may be reversible or if it bepre ferred to avoid the use of a reversible roll, a third roll 3 may bearranged between the vertical rolls 3 and 3 in the manner shown inFig. 1. This intermediate ro'll can be mounted and shifted back andforth as shown and described in Letters-Patent No. 382,035. By shiftingthis third or intermediate roll 3 into contact alternately with the mainvertical rolls, reduction can be ef fected at each pass of the articlewithout reversing the main rolls 3 and 3 It is characteristic of theconstruction of mill shown in Figs. 1, 2 and 3 that reduction can beeffected inevery pass by a pair of horizontal rolls and also if desiredby the vertical rolls and that without reversing-the direction ofrotation of any of the reducing rolls provided an intermediate. verticalroll be employed. But for each pass the feed mechanism is reversed. Aswill be readily seen by those skilled in the art, when an article isbeing reduced, that the lower roll of the then non-operating pair ofhorizontal rolls will tend by reason of its rotation in a directionopposite that of the movement of the article at this time, to preventthe latter from sufiicient movement, as to the right in Fig. 3, that itsrear end will pass beyond such temporarily nonoperating rolls as isnecessary for the proper reduction or opera tion of said rolls in thenext or back pass,.as to the left in Fig. 3. To render certain themovement of the article to a position where its rear end will beentirely beyond the rolls, as 2 2, several means can be employed, suchfor example as that shown in Fig. 3, or the construction shown in Figs.4, 5 and 6. In a mill employing two high horizontal rolls, as shown inFigs. 1, 2, and 3, an interference of the lower roll of the temporarilynon-reducing pair, with the movement of the article to operativeposition for the next pass can be prevented by so changing the normalrelative positions of the feed table and lower roll that the latter willbe out of contact with an article moving along the feed table andrestoring said parts to operative positions when reduction is desired-In Fig. 3 is shown a means for adjusting the lower roll to and fromoperative position consisting of right and left hand screws 27 providedwith 2 2 are driven in the same direction. This rotation of the rolls 11 and 2 2 is preferably effected by the interposition of a driven pinionbetween the pairs of pinions 6 and 7, as shown in Fig. 6. Theintermediate rolls 1 and 2 are driven by motors C and D which arereversible. The upper rolls 1 and 2 are adjustable by any suitablemeans,

such for example as the screws 4 and 5 and the intermediate rolls areadjustable toward and from the lower rolls of each pair by any suitablemechanism such for example as that shown consisting of fluid pressurecylinders 23 and rods 24 extending from the ram of said cylinders to thejournal blocks 25 of the intermediate rolls as shown in Fig. 5.

Inthe operation of this mill when the article is moving to the right inFigs. 5 and 7, theintermediate roll 1 is adjusted down so as to be infrictional contact with the lower roll 1, and may be so driven by itsmotor C that the latter will assist in the ro tation effected mainly bythe lower. roll, or the motor 0 D may be disconnected from theintermediate rolls during a reducing pass, by shifting the clutches 26shown in Fig. 4. The vertical rolls which may be two or three as shownin Figs. at and S, are adjusted and operated to eifect a reductionduring this pass if desired, while in the other stand of horizontalrolls the upper roll is adjusted up so as to have no reducing action andthe intermediate roll 2 is raised out of contact with the lower roll 2,and is rotated by its motor in a direction corresponding with thedirection of rotation of the feed rollers during this pass as shown inFig. 5., During the back pass the intermediate roller 2 is lowered intocontact with the lower roll 2 and its direction of rotation reversedboth by its motor and by frictional contact with the lower roll theclutch 26 may be shifted to disconnect the roll from the motor. .Theupperroll 1 is raised to in operative position and the intermediate rolll raised out of contact with the lower roll 1 and its direction ofrotation also reversed so as to move in the same direction with the feedrollers during this pass as shown in those skilled in the art, theintermediate rolls 1 and 2* as they will always rotate in the directionof rotation of the feed rollers, may be driven from the same shafting orthe same motor as the feed rollers in lieu-of employing inde endentmotors for this purpose, especial y, as the lower rolls are mainly betwo high, as shown in Figs. 1, 2, 3, 9

and 10 or three high rolls, as shown in Figs. 4 and 5. When using twohigh stands, the rolls of one pair are rotated in a reverse direction tothe other pair, as heretofore described, and the rolls inoperative inone pass 'are adjusted so as to have no material action on the. article,as heretofore described.

The feed mechanism is reversible after each ass.

p When using three hi h stands of'horizontal rolls, reduction is e ectedalternately by each stand. In one pass the several hOIlzontal rolls areadjusted to the positions 1 shown in Fig. 5, while in the next pass therolls will have the position shown in Fig. 7.

It will be understood that the vertical rolls, when used may be arrangedin any desired operative relation to the horizontal rolls, and that themill may be operative so that the article may be reduced and then edgedor edged and then .reduced or the edging may be omitted.

I claim herein as my invention 1. In. a rolling mill the combination oftwo stands of horizontal rolls, means for constantly driving the. rollsof such stands in such direction that the rolls of one stand will feedthe article during reduction tofxwardthe other stand, means for lowering.and raising the lowerrolls, a stand of vertical rolls arranged inoperative relation to the stands ofhorizontal rollsand positively drivenand operative in; both directions, and reversible mechanism for feedingthe article back and forth through the rolls. 7

2. In a rolling mill the combination of two stands of horizontal rolls,means for constantly drivin the rolls of such stands in such direction tatrolls of one stand willfeed the article during reduction toward theother stand, means for lowering and raising the lower rolls, a. stand ofvertical rolls arranged in operative relation to the stands ofhorizontal rolls means for positively rotatin the vertical rolls andreversible 3. In a rolling mill the combination of vtwo stands of threehigh rolls, means for positively rotating the outer rolls of" each standin the same direction but reversely to the direction of rotation of theouter rolls 'erence'to another so as to of the other stand, means forshifting one of the outer rolls and the intermediate roll of each standrelative to the other outer roll, and reversible mechanism for feedingthe article back and forth through the rolls.

4. Inv a rolling mill the combination of two stands of three high rolls,means for positively rotating the outer rolls of each in the samedirection but reversely to the direction of rotation of the outer rollsof the other stand, means for shifting an outer roll and theintermediate roll of each stand relative to the other outer roll,reversible feed mechanism and means for rotating the intermediate rollin the direction of feed of the feed mechanism,

5. In a rollin mill the combination of two stands of t ree high rolls,means for positively rotating the outer rolls of each stand in the samedirection but reversely to the direction of rotation. of the outer rolls7 of the other stand means for shifting an outer roll and theintermediate roll of each stand relative to the other outer roll, astand of vertical r'olls arranged in operative relation to the stands ofhorizontal rollsi .of vertical rolls arranged in o eratlve'relation tothe stands of horizonta rolls, means for rotating the intermediate rollsin the direction of feed of the feed mechanism and reversiLl's mechanismfor feeding the article back and forth.

7. In a rolling for adjusting one roll of each stand relative to. theother r011, an intermediate roll for each stand normally in drivingcontact with the'lower roll of said stand, means for moving one of therolls of each stand with refermit of the independent rotation of theintermediate roll, and non-reversible means for driving the outer rollsof each stand.

8. In a rolling mill the combination of two horizontal rolls, means foradjusting one roll relative to the other roll, an intermediate rollnormally in driving contact with one of the outer rolls, means formoving, the rolls to permit of the independent rotation of theintermediate roll, non-reversible means for driving the outer rolls, andmeans for rotating the intermediate roll when out of drivin contact withthe other rolls reversely to e direction -of rotation mill thecombination of two stands having horizontal rolls, means imparted'to itwhen-in contact with one of theother rolls.

9. In a rolling mill, the combination of two stands of horizontal rolls,each standv comprisingnpperand lower rolls and an intermediate rollnormally in contact withthe lower roll and means for causing separationof the intermediate roll from the lower roll a distance which willpermit the intermediate roll to rotate both in the same and oppositedirection to thatin which the lowerroll rotates, said stands of rolls soarranged that the work piec'eb'eing operated upon by theupper andintermediate rolls ofv one stand can pass between the upper and 15intermediate rolls of the other stand.

In testimony whereof, I have hereunto

